Gravel, Stone and Soil for Mitchell County, IA

Iowa Rock Supply brings gravel, stone and aggregate delivery in Mitchell County, IA to Osage, St. Ansgar, Riceville and the farm lanes between them.

Work here starts once frost is out and the low ground has drained, and runs to the fall freeze.

Class A roadstone is the base most of that work sits on, a crushed limestone with the fines left in so it binds and compacts. Order it online by the ton or the yard and a truck tips it on site.

Materials Delivered in Mitchell County

Class A roadstone is the standard Iowa base course, and it is written the same way by county engineers and city entrance standards.

10.

Use Class A Roadstone for driveways, parking pads, shed bases and farm lanes. It is a 3/4 inch crushed limestone with fines that bind and compact.

1 Inch Roadstone is the coarser grade, laid under a finer surface course on a new drive, a soft spot or a lane that carries heavy equipment.

River Rock and 3/8" Natural Pea Gravel cover decorative beds, borders, walkways and play areas. Mason Sand beds brick and block mortar and paver joints.

Choosing the Right Material

Ground changes what a base needs, and the ground changes as you cross county lines.

Cerro Gordo County sits on the Des Moines Lobe, the youngest glacial ground in Iowa: thick, compact pebbly loam till of the Dows Formation, 45 to 60 feet deep, with sand and gravel along old meltwater channels and hummocky, stony ground on the moraine ridges.

That deep till holds water differently from the thin, patchy loess cover here. On ground like that, drainage matters as much as base thickness, and clean, open graded stone earns its place.

Worth County spans more than one zone, Des Moines Lobe and Iowan Surface, so the ground shifts within it. Howard County shares the Iowan Surface ground that Mitchell County sits on, so the base and drainage choices are the same.

Ground Conditions Across Mitchell County

Across the Iowan Surface, loamy glacial till has been planed down by cold-climate erosion. A thin and patchy loess cover sits over it, with a residual stone line or pebble band near the surface and large granite and quartzite erratics scattered through the fields.

Limestone bedrock is shallow along the eastern edge.

A thin base over that ground shows its failure fast. Sheet wash on the long, low slopes strips a shallow course, and runoff that concentrates cuts gullies instead of spreading.

The fix is a roadstone base deep enough to bridge the soft spots and a clean, open graded layer where water needs to move.

Drainage networks here are well established, but stream gradients are low, so water moves slowly and pockets of old wetland ground still hold water. Limestone aquifers keep the rivers running in dry spells and can put groundwater close to the surface.

Low spots stay soft well after the uplands are ready.

Bank scour on the Cedar, Wapsipinicon and Shell Rock after heavy rain and thaw is where riprap and revetment stone go to work. Section 4130 covers revetment stone, erosion stone and gabion stone by class letter, and Section 4123 covers modified subbase.

Hard northern Iowa winters bring a long frozen season and repeated freeze-thaw that lifts gravel drives, walks and slabs each spring. Frost depth is commonly 42 inches, and the local building official sets footing depth.

Delivery Across Mitchell County

Order online and pick a delivery date at checkout. Quantities are ordered by the ton or by the yard, and each product page has a calculator to size the load.

A dump truck tips the material on site in one pile.

Delivery covers Osage, St. Ansgar, Riceville, Stacyville, Orchard, McIntire, Carpenter, Little Cedar and Toeterville, along with the rural lanes around them.

Fill dirt and roadstone often go down together on the same project, so plan the grade before the surface course.

Order Gravel, Stone and Soil in Mitchell County

Size the load with the calculator on each product page, then order online by the ton or the yard and pick your delivery date at checkout. Class A roadstone, clean rock, riprap, sand and black dirt all go out across Mitchell County, from Osage to St.

Ansgar and the farm lanes beyond. Place your order and a truck tips it on site.